Abstract: An accumulator vessel is divided into two compartments by an overflow baffle divider and is used in combination with two fractionators. Overhead product from a first fractionator is passed into the first compartment of the accumulator. Liquids from the first compartment pass to the second fractionator as feed. Bottoms product from the second fractionator then passes to the second accumulator compartment from which it is passed as preferred reflux for the first fractionator.

Abstract: A sampling probe and method for its use in which a flow amplifier utilizing the Coanda wall attachment effect has attached to its inlet an isokinetic sampling nozzle and has attached to its outlet a straight tube so that upon passing a flow of compressed, motive gas through the throttling inlet of the flow amplifier, a flow of sample gas is induced from a gaseous external environment of the probe and the motive gas provides a barrier between the sample gas and the wall of the flow amplifier and attached tube. In an embodiment of the invention the motive gas is a dry gas at elevated temperature which reduces moisture content of samples of moist gas environments.